I have a normal spring cloud stream application that simple reads data from Kafka topic and produces messages to another Kafka topic, please find below the configurations: And the following application.proeprties And below is the signature of all defined spring cloud functions Everything works fine, and the a…
Tag: java
Is it possible to manipulate the operating system (Windows) with java?
Is it possible to manipulate the operating system with java? I wanted to build a program that manipulates the operating system by creating keys in the windows registry, observes the behavior of the hardware (like a task manager) Answer Yes it is possible call native code to perform OS specific calls from Java…
Removing Duplicates from linked list. Why are the position of “prev = head” and “p2 = p2.next” not outside the else statement?
For the first function, shouldn’t “prev = head” be outside of else because we want to set the previous every time before we change the head value? For the second function, shouldn’t “p2 = p2.next” be outside of else because we want to go next every time? Thank you guys. Ans…
LOG4J JNDI attack CVE-2021-45105 wso2 vulnerability [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 12 months ago. Improve this question My present project is fully dockerized with large number of Spring Boot …
Stream / Reduce a series of functions applied to an input value with bound variables in Java
How does one go about rewriting this loop using a stream. It should be possible to rewrite this loop using validators.stream().reduce(…) I have tried using the guidance here, but I cannot figure out what BiFunction interface needs to be implemented and how. The interface as it currently stands looks lik…
How to change my Selenium code to HtmlUnit [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed last year. Improve this question I have …
BufferedImage getTile(): what is it, how does it differ from getSubimage()
What is BufferedImage getTile()? I see that is returns a Raster object. Is this another form of an image or graphical object? If so, what advantages / disadvantages are there to using getTile() vs using getSubImage()? Answer The BufferedImage.getTile(int, int) method is inherited from the RenderedImage interf…
How do I check if two simple 2D arrays have the same 1D arrays? (order and repetitions doesn’t matter)
My main objective is to return if all elements, int[ ], of a 2D Array ,int[ ][ ], are present in another 2D Array. I already tried to use Arrays.deepEquals() but in this case, the order of the elements would matter and that’s not the purpose. Int[ ][ ] arrays wouldn’t be longer than 15, for exampl…
How to make sure a player is touching the game piece before allowing them to move it
I am trying to make it so that the game piece (red square) cannot be moved unless the player initially clicks on it, but can then drag it freely until releasing it. Currently, if the player clicks anywhere on the the screen the game piece will move to their cursor/finger when they start moving it. If I try to…
Is there a faster way to create 12 buttons?
I am doing a task where I need to create a 3×4 GridLayout with 12 buttons. The task is when I click any of the buttons, all other buttons change the value to 1. Now, this is how I did it: My question is – is there a faster way to do this than just copying the same lines 12